Do you have a way to turn off your automatic telemetry? It seems like one of the first things the UI does is send a bunch of info back to Sentry.
It also appears that the email verification works by passing the email straight on to one of your servers, instead of my own SMTP setup, which is promptly blocked by my spamfilter.
EDIT: Limit on the password of 20 characters? It's hashed anyway right, who cares?
More Edit: I'm trying to add a data source, and even though I'm self-hosting it's displaying:
> Credentials will be encrypted & stored securely on our servers. Connect Type Cloud: ILLA servers will securely connect to your database.
I'm going to stop testing now, since I have no desire for my database credentials to be floating around on your cloud like my email already is.